Example usage for javax.servlet.http HttpServletResponse setContentLength

Introduction

In this page you can find the example usage for javax.servlet.http HttpServletResponse setContentLength.

Prototype

public void setContentLength(int len);

Source Link

Document

Sets the length of the content body in the response In HTTP servlets, this method sets the HTTP Content-Length header.

Usage

From source file:com.novartis.pcs.ontology.rest.servlet.OntologiesServlet.java

private void serializeAll(HttpServletResponse response) {
    try {//www.j  a  v a2 s. com
        List<Ontology> all = ontologyDAO.loadByStatus(EnumSet.of(Status.APPROVED));
        List<Ontology> ontologies = new ArrayList<Ontology>();

        for (Ontology ontology : all) {
            if (!ontology.isCodelist()) {
                ontologies.add(ontology);
            }
        }

        response.setStatus(HttpServletResponse.SC_OK);
        response.setHeader("Access-Control-Allow-Origin", "*");
        response.setContentType(MEDIA_TYPE_JSON + ";charset=utf-8");
        response.setHeader("Cache-Control", "public, max-age=0");

        // As per jackson javadocs - Encoding will be UTF-8
        mapper.writeValue(response.getOutputStream(), ontologies);

    } catch (Exception e) {
        log("Failed to serialize ontologies to JSON", e);
        response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
        response.setContentLength(0);
    }
}

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From source file:com.autoupdater.server.controllers.FrontEndAPIController.java

/**
 * Send file to client./*  w ww  .ja  v  a  2 s. com*/
 * 
 * Runs on GET /server/api/download/{updateID} request.
 * 
 * @param updateID
 *            update's ID
 * @param response
 *            response to be sent
 * @param request
 *            received by servlet
 */
@SuppressWarnings("resource")
@RequestMapping(value = "/download/{updateID}", method = GET)
public @ResponseBody void getFile(@PathVariable("updateID") int updateID, HttpServletResponse response,
        HttpServletRequest request) {
    InputStream is = null;
    try {
        logger.debug("Received request: GET /api/download/" + updateID);

        Update update = updateService.findById(updateID);
        if (update == null) {
            logger.debug("Response 404, Update not found for: GET /api/list_updates/" + updateID);
            sendError(response, SC_NOT_FOUND, "Update id=" + updateID + " not found");
            return;
        }

        is = fileService.loadFile(update.getFileData());

        String range = request.getHeader("Range");
        long skip = 0;
        if (range != null) {
            logger.debug("Values of range header : " + range);
            range = range.substring("bytes=".length());
            skip = parseLong(range);

            is.skip(skip);
        }
        response.setContentType(update.getFileType());
        response.setContentLength((int) (update.getFileSize() - skip));

        logger.debug("Sending file on request: GET /api/download/" + updateID);
        copy(is, response.getOutputStream());
        response.flushBuffer();
    } catch (NumberFormatException | IOException e) {
        logger.error("Error sending file updateID=" + updateID + ": " + e);
        sendError(response, SC_INTERNAL_SERVER_ERROR, "Couldn't prepare file to send");
    } finally {
        if (is != null)
            try {
                is.close();
            } catch (IOException e) {
                logger.debug(e);
            }
    }
}

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From source file:net.lightbody.bmp.proxy.jetty.jetty.servlet.Default.java

public void handleGet(HttpServletRequest request, HttpServletResponse response, String pathInContext,
        Resource resource, boolean endsWithSlash) throws ServletException, IOException {
    if (resource == null || !resource.exists())
        response.sendError(HttpResponse.__404_Not_Found);
    else {//  w  w w .j  a va 2s.  c  o  m

        // check if directory
        if (resource.isDirectory()) {
            if (!endsWithSlash && !pathInContext.equals("/")) {
                String q = request.getQueryString();
                StringBuffer buf = request.getRequestURL();
                if (q != null && q.length() != 0) {
                    buf.append('?');
                    buf.append(q);
                }
                response.setContentLength(0);
                response.sendRedirect(response.encodeRedirectURL(URI.addPaths(buf.toString(), "/")));
                return;
            }

            // See if index file exists
            String welcome = _httpContext.getWelcomeFile(resource);
            if (welcome != null) {
                String ipath = URI.addPaths(pathInContext, welcome);
                if (_redirectWelcomeFiles) {
                    // Redirect to the index
                    response.setContentLength(0);
                    response.sendRedirect(URI.addPaths(_httpContext.getContextPath(), ipath));
                } else {
                    // Forward to the index
                    RequestDispatcher dispatcher = _servletHandler.getRequestDispatcher(ipath);
                    dispatcher.forward(request, response);
                }
                return;
            }

            // Check modified dates
            if (!passConditionalHeaders(request, response, resource))
                return;

            // If we got here, no forward to index took place
            sendDirectory(request, response, resource, pathInContext.length() > 1);
        } else {
            // Check modified dates
            if (!passConditionalHeaders(request, response, resource))
                return;

            // just send it
            sendData(request, response, pathInContext, resource);
        }
    }
}

---

From source file:com.portfolio.data.attachment.XSLService.java

void RetrieveAnswer(HttpURLConnection connection, HttpServletResponse response, String referer)
        throws MalformedURLException, IOException {
    /// Receive answer
    InputStream in;/*from w  ww.  jav  a  2s.c  o  m*/
    try {
        in = connection.getInputStream();
    } catch (Exception e) {
        System.out.println(e.toString());
        in = connection.getErrorStream();
    }

    String ref = null;
    if (referer != null) {
        int first = referer.indexOf('/', 7);
        int last = referer.lastIndexOf('/');
        ref = referer.substring(first, last);
    }

    response.setContentType(connection.getContentType());
    response.setStatus(connection.getResponseCode());
    response.setContentLength(connection.getContentLength());

    /// Transfer headers
    Map<String, List<String>> headers = connection.getHeaderFields();
    int size = headers.size();
    for (int i = 1; i < size; ++i) {
        String key = connection.getHeaderFieldKey(i);
        String value = connection.getHeaderField(i);
        //         response.setHeader(key, value);
        response.addHeader(key, value);
    }

    /// Deal with correct path with set cookie
    List<String> setValues = headers.get("Set-Cookie");
    if (setValues != null) {
        String setVal = setValues.get(0);
        int pathPlace = setVal.indexOf("Path=");
        if (pathPlace > 0) {
            setVal = setVal.substring(0, pathPlace + 5); // Some assumption, may break
            setVal = setVal + ref;

            response.setHeader("Set-Cookie", setVal);
        }
    }

    /// Write back data
    DataInputStream stream = new DataInputStream(in);
    byte[] buffer = new byte[1024];
    //       int size;
    ServletOutputStream out = null;
    try {
        out = response.getOutputStream();
        while ((size = stream.read(buffer, 0, buffer.length)) != -1)
            out.write(buffer, 0, size);

    } catch (Exception e) {
        System.out.println(e.toString());
        System.out.println("Writing messed up!");
    } finally {
        in.close();
        out.flush(); // close() should flush already, but Tomcat 5.5 doesn't
        out.close();
    }
}

---

From source file:mx.edu.um.mateo.rh.web.EstudiosEmpleadoController.java

private void generaReporte(String tipo, List<EstudiosEmpleado> estudiosEmpleados, HttpServletResponse response)
        throws JRException, IOException {
    log.debug("Generando reporte {}", tipo);
    byte[] archivo = null;
    switch (tipo) {
    case "PDF":
        archivo = generaPdf(estudiosEmpleados);
        response.setContentType("application/pdf");
        response.addHeader("Content-Disposition", "attachment; filename=EstudiosEmpleado.pdf");
        break;/*from   w ww  . j  a  v a2s.c  om*/
    case "CSV":
        archivo = generaCsv(estudiosEmpleados);
        response.setContentType("text/csv");
        response.addHeader("Content-Disposition", "attachment; filename=EstudiosEmpleado.csv");
        break;
    case "XLS":
        archivo = generaXls(estudiosEmpleados);
        response.setContentType("application/vnd.ms-excel");
        response.addHeader("Content-Disposition", "attachment; filename=EstudiosEmpleado.xls");
    }
    if (archivo != null) {
        response.setContentLength(archivo.length);
        try (BufferedOutputStream bos = new BufferedOutputStream(response.getOutputStream())) {
            bos.write(archivo);
            bos.flush();
        }
    }

}

---

From source file:com.stimulus.archiva.presentation.DownloadLogBean.java

@Override
protected StreamInfo getStreamInfo(ActionMapping mapping, ActionForm form, HttpServletRequest request,
        HttpServletResponse response) throws Exception {

    String fileName = ((ConfigBean) form).getLogFile();

    if (fileName == null) {
        logger.error("failed to download log file as the filename is null");
        return null;
    }//from  www  .j a v a2s.  co m
    String agent = request.getHeader("USER-AGENT");
    if (null != agent && -1 != agent.indexOf("MSIE")) {
        String codedfilename = URLEncoder.encode(fileName, "UTF8");
        response.setContentType("application/x-download");
        response.setHeader("Content-Disposition", "attachment;filename=" + codedfilename);
    } else if (null != agent && -1 != agent.indexOf("Mozilla")) {
        String codedfilename = MimeUtility.encodeText(fileName, "UTF8", "B");
        response.setContentType("application/x-download");
        response.setHeader("Content-Disposition", "attachment;filename=" + codedfilename);
    } else {
        response.setHeader("Content-Disposition", "attachment;filename=" + fileName);
    }
    File file = ConfigurationService.exportLog(fileName);
    String viewName = fileName.replace(' ', '_') + ".zip";
    logger.debug("download attachment {fileName='" + viewName + "'");
    String contentType = "application/download";
    response.setContentLength((int) file.length());
    Config.getFileSystem().getTempFiles().markForDeletion(file);
    return new FileStreamInfo(contentType, file);
}

---

From source file:annis.gui.servlets.BinaryServlet.java

private void responseStatus206(WebResource binaryRes, String mimeType, ServletOutputStream out,
        HttpServletResponse response, String range) throws RemoteException, IOException {
    List<AnnisBinaryMetaData> allMeta = binaryRes.path("meta").get(new AnnisBinaryMetaDataListType());

    if (allMeta.size() > 0) {
        AnnisBinaryMetaData bm = allMeta.get(0);
        for (AnnisBinaryMetaData m : allMeta) {
            if (mimeType.equals(m.getMimeType())) {
                bm = m;/*from w  ww  .j a  va  2s  . co  m*/
                break;
            }
        }

        // Range: byte=x-y | Range: byte=0-
        String[] rangeTupel = range.split("-");
        int offset = Integer.parseInt(rangeTupel[0].split("=")[1]);

        int slice;
        if (rangeTupel.length > 1) {
            slice = Integer.parseInt(rangeTupel[1]);
        } else {
            slice = bm.getLength();
        }

        int lengthToFetch = slice - offset;

        response.setHeader("Content-Range",
                "bytes " + offset + "-" + (bm.getLength() - 1) + "/" + bm.getLength());
        response.setContentType(bm.getMimeType());
        response.setStatus(206);
        response.setContentLength(lengthToFetch);

        writeStepByStep(offset, lengthToFetch, binaryRes, out);
    }
}

---

From source file:architecture.ee.web.community.spring.controller.DownloadController.java

@RequestMapping(value = "/profile/{username}", method = RequestMethod.GET)
@ResponseBody/*ww w. j av a 2  s  .c o  m*/
public void handleProfile(@PathVariable("username") String username,
        @RequestParam(value = "width", defaultValue = "0", required = false) Integer width,
        @RequestParam(value = "height", defaultValue = "0", required = false) Integer height,
        HttpServletResponse response) throws IOException {

    log.debug(" ------------------------------------------");
    log.debug("userName:" + username);
    log.debug("width:" + width);
    log.debug("height:" + height);
    log.debug("------------------------------------------");
    try {
        ProfileImage image = profileManager.getProfileImageByUsername(username);
        log.debug("using profile image : " + image.getFilename());
        InputStream input;
        String contentType;
        int contentLength;
        if (width > 0 && width > 0) {
            input = profileManager.getImageThumbnailInputStream(image, width, height);
            contentType = image.getThumbnailContentType();
            contentLength = image.getThumbnailSize();
        } else {
            input = profileManager.getImageInputStream(image);
            contentType = image.getImageContentType();
            contentLength = image.getImageSize();
        }

        response.setContentType(contentType);
        response.setContentLength(contentLength);
        IOUtils.copy(input, response.getOutputStream());
        response.flushBuffer();
    } catch (Exception e) {
        response.setStatus(301);
        String url = ApplicationHelper.getApplicationProperty("components.download.images.no-avatar-url",
                "/images/common/anonymous.png");
        response.addHeader("Location", url);
    }
}

---

From source file:com.stimulus.archiva.presentation.DownloadBean.java

@Override
protected StreamInfo getStreamInfo(ActionMapping mapping, ActionForm form, HttpServletRequest request,
        HttpServletResponse response) throws Exception {

    String fileName = request.getParameter("attachment");
    //String fileName = ((MessageBean)form).getAttachment();
    //File file = new File(((MessageBean)form).getAttachmentFilePath());
    String filePath = Config.getFileSystem().getViewPath() + File.separatorChar + fileName;
    File file = new File(filePath);
    logger.debug("download attachment {fileName='" + file.getPath() + "'");
    String agent = request.getHeader("USER-AGENT");
    if (null != agent && -1 != agent.indexOf("MSIE")) {
        String codedfilename = URLEncoder.encode(fileName, "UTF8");
        response.setContentType("application/x-download");
        response.setHeader("Content-Disposition", "attachment;filename=" + codedfilename);
    } else if (null != agent && -1 != agent.indexOf("Mozilla")) {
        String codedfilename = MimeUtility.encodeText(fileName, "UTF8", "B");
        response.setContentType("application/x-download");
        response.setHeader("Content-Disposition", "attachment;filename=" + codedfilename);
    } else {/*from  w ww. ja  v  a2 s .c o m*/
        response.setHeader("Content-Disposition", "attachment;filename=" + fileName);
    }
    String contentType = "application/download";
    response.setContentLength((int) file.length());
    Config.getFileSystem().getTempFiles().markForDeletion(file);
    return new FileStreamInfo(contentType, file);
}

---

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